Home Inspection State Practice Exam 2025 - Free Home Inspection Practice Questions and Study Guide

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When diagnosing plumbing noises, what does a gurgle indicate in older homes?

Air in the pipes

A gurgle in the plumbing system of older homes typically indicates the presence of air in the pipes. This phenomenon often occurs when there are issues with venting or when the drainage system is not functioning properly, leading to a disruption in the flow of water. As water flows past the blockages or irregularities in the pipes, the movement creates air bubbles, which manifest as gurgling sounds.

Additionally, gurgling can suggest that there may be a partial blockage or that the venting is inadequate, which can lead to negative pressure in the plumbing system. This negative pressure draws air into the pipes, resulting in the characteristic gurgling noise. Recognizing this sound can assist an inspector in diagnosing potential plumbing issues that may require further investigation or repair.

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Leaks in the plumbing system

Trapped water in the drains

Evacuating air from the sewer line

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